9 COMMON SYMPTOMS OF A BAD IDLE AIR CONTROL VALVE | BAD IAC VALVE SIGNS

#valve #iac #idle
The Idle Air Control valve, or IAC valve is a crucial component in the engine control system of a vehicle. The main function of the IAC valve is to regulate the engine's idle speed by controlling the amount of air that bypasses the throttle plate.
When the driver releases the accelerator pedal and the throttle is closed, the IAC valve adjusts the airflow to maintain a stable and controlled idle speed. It works with the vehicle's engine control module.

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TimeStamp
00:00 Introduction
00:54 Symptoms of Bad IAC Valve
00:58 Irregular Idle Speed
01:21 Stalling
01:41 Poor Idle Quality
02:05 Difficulty Starting
02:22 Increased or Decreased RPM
02:43 Check Engine Light
03:07 Poor Fuel Economy
03:30 Backfiring
03:47 Hissing or Whistling Sounds

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Disclaimer:
This video is just for educational purposes only. We are not in the auto repair business nor publish automotive service manuals. This video is not reviewed or authorized by any vehicle manufacturer. This video is intended only as general guidance. Every system is slightly different, so refer to the owner’s manual of your vehicle for any specific information about your model. Remember that only proper service and repair procedures will ensure your car's safe and reliable operation.

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